<template>
  <div>
    <div>
      <el-upload
        multiple
        :action="uploadImgUrl"
        list-type="picture-card"
        :on-success="handleUploadSuccess"
        :before-upload="handleBeforeUpload"
        :limit="limit"
        :on-error="handleUploadError"
        :on-exceed="handleExceed"
        name="file"
        :on-remove="handleRemove"
        :show-file-list="true"
        :headers="headers"
        :file-list="fileList"
        :on-preview="handlePictureCardPreview"
        :class="{hide: this.fileList.length >= this.limit}"
      >
        <i class="el-icon-plus"></i>
      </el-upload>
      <el-button type="primary" plain size="mini" icon="el-icon-camera" @click="openCamera">高拍仪</el-button>
    </div>
    <el-drawer title="拍照" size="50vw" :show-close="false" :visible.sync="show"  :before-close="handleClose">
      <el-container class="main_container">
        <el-main>
          <el-card style="margin: 0 15px 10px 15px;">
            <el-row>
              <el-col :span="16" :offset="2" >
                <el-image v-loading="loading" ref="ImgMain" fit="contain" style="width: 400px;height: 300px;" v-if="imgSrc" :src="imgSrc"/>
              </el-col>
              <el-col :span="2" :offset="2">
                <el-button type="primary" plain style="margin-bottom: 10px;" @click="onGeneratePhoto">拍照</el-button><br />
                <el-button type="info" plain @click="reset">重置</el-button>
              </el-col>
            </el-row>
          </el-card>
          <el-card style="margin: 0 15px;" v-if="imgList && imgList.length > 0">
            <template v-for="img in imgList">
              <el-image :src="img.url" :preview-src-list="[img.url]" style="width: 120px;height: 80px;margin-right: 10px;"></el-image>
            </template>
          </el-card>
        </el-main>
        <el-footer>
         <div class="footerDivClass">
           <el-button type="primary" @click="submitForm">确 定</el-button>
           <el-button @click="handleClose()">取 消</el-button>
         </div>
        </el-footer>
      </el-container>

    </el-drawer>

  </div>
</template>

<script>
import { getToken } from "@/utils/auth";
import { delOss,delOssByUrl } from "@/api/system/oss";
import {getPhotoBase64,URL,closeCamera} from "./photo";
import {getUploadOss} from '@/api/center'
export default {
  props: {
    value: [String, Object, Array],
    // 图片数量限制
    limit: {
      type: Number,
      default: 5,
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["png", "jpg", "jpeg"],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true
    }
  },
  data() {
    return {
      number: 0,
      uploadList: [],
      dialogImageUrl: "",
      dialogVisible: false,
      hideUpload: false,
      baseUrl: process.env.VUE_APP_BASE_API,
      uploadImgUrl: process.env.VUE_APP_BASE_API + "/system/oss/upload", // 上传的图片服务器地址
      deleteImgUrl: process.env.VUE_APP_BASE_API + "/system/oss/", // 删除上传的图片服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      fileList: [],

      //高拍仪
      show:false,
      camidx: '0',
      imgSrc:'',
      loading:true,
      isLoading: false,
      imgList:[],

    };
  },
  watch: {
    value: {
      handler(val) {
        if (val && val.length > 0) {
          // 首先将值转为数组
          const list = Array.isArray(val) ? val : this.value.split(',');
          // 然后将数组转为对象数组
          this.fileList = list.map(item => {
            if (typeof item === "string") {
              item = { fileName: item, url: item };
            }
            return item;
          });
        } else {
          this.fileList = [];
          return [];
        }
      },
      deep: true,
      immediate: true
    }
  },
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  async mounted() {
    await this.handleOpenCamera()
  },
  methods: {
    getDevice() {
          getDevice().then(({ data: res }) => {
            if (res.code === '0') {
            } else {
              this.$modal.msgError(new Date().toLocaleString() + '\t' + '获取设备失败')
            }
          })
        },
    // 删除图片
    handleRemove(file, fileList) {
      let ossId = null;
      if(file.ossId){
        ossId = file.ossId;
      }else{
        ossId = file.fileName;
      }
      const findex = this.fileList.map(f => f.fileName).indexOf(file.fileName);
      if(findex > -1) {
        this.fileList.splice(findex, 1);
        if(Array.isArray(this.value)){
          this.$emit("input", this.fileList);
        }else{
          this.$emit("input", this.listToString(this.fileList));
        }
      }
      if(ossId){
        if(typeof ossId == 'string' && ossId.indexOf("//") != -1){
          delOssByUrl(ossId);
        }else{
          delOss(ossId);
        }
      }
    },
    // 上传成功回调
    handleUploadSuccess(res) {
      this.uploadList.push({ossId:res.data.ossId, fileName: res.data.fileName, url: res.data.url });
      if (this.uploadList.length === this.number) {
        this.fileList = this.fileList.concat(this.uploadList);
        this.uploadList = [];
        this.number = 0;
        if(Array.isArray(this.value)){
          this.$emit("input", this.fileList);
        }else{
          this.$emit("input", this.listToString(this.fileList));
        }
        this.$modal.closeLoading();
      }
    },
    // 上传前loading加载
    handleBeforeUpload(file) {
      let isImg = false;
      if (this.fileType.length) {
        let fileExtension = "";
        if (file.name.lastIndexOf(".") > -1) {
          fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
        }
        isImg = this.fileType.some(type => {
          if (file.type.indexOf(type) > -1) return true;
          if (fileExtension && fileExtension.indexOf(type) > -1) return true;
          return false;
        });
      } else {
        isImg = file.type.indexOf("image") > -1;
      }

      if (!isImg) {
        this.$modal.msgError(`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`);
        return false;
      }
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$modal.msgError(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.$modal.loading("正在上传图片，请稍候...");
      this.number++;
    },
    // 文件个数超出
    handleExceed() {
      this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传失败
    handleUploadError() {
      this.$modal.msgError("上传图片失败，请重试");
      this.$modal.closeLoading();
    },
    // 预览
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },
    // 对象转成指定字符串分隔
    listToString(list, separator) {
      let strs = "";
      separator = separator || ",";
      for (let i in list) {
        strs += list[i].url + separator;
      }
      return strs != '' ? strs.substr(0, strs.length - 1) : '';
    },

    //打开高拍仪
    openCamera(){
      this.show = true;
      this.handleOpenCamera();
    },
    // 打开摄像头
    handleOpenCamera() {
      this.loading = true;
      this.imgSrc = URL + '/video=stream&camidx=' + this.camidx
      setTimeout(()=>{this.loading = false;},1200)
    },
    //拍照
    async onGeneratePhoto() {
      this.loading = true
      const formData = {
        filepath: 'base64',
        rotate: '0',
        camidx: this.camidx,
        cutpage: '0'
      }
      await getPhotoBase64(JSON.stringify(formData)).then((res) => {
         if (res.data.code === '0') {
          let imgBase64 = 'data:image/jpg;base64,' + res.data.photoBase64;
          getUploadOss({base64Url:imgBase64}).then(response=>{
            console.info('response====>',response)
            this.imgList.push(response.data)
          })
         } else {
           this.$message.error(`拍照失败：${res.code},${res.message}`)
         }
       }).finally((res)=>{
         this.loading = false
       })
    },
    //关闭高拍仪
    handleClose(){
      this.imgList = [];
      this.show = false;
    },
    submitForm(){
      this.fileList = this.fileList.concat(this.imgList);
      this.$emit("input", this.fileList);
      this.handleClose();
    },
    reset(){
      this.imgList = [];
    }
  }
};
</script>

<style scoped lang="scss">
// .el-upload--picture-card 控制加号部分
::v-deep.hide .el-upload--picture-card {
    display: none;
}
// 去掉动画效果
::v-deep .el-list-enter-active,
::v-deep .el-list-leave-active {
    transition: all 0s;
}

::v-deep .el-list-enter, .el-list-leave-active {
  opacity: 0;
  transform: translateY(0);
}
</style>
